| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laser marking method for marking on a resin whereby the sufficient whiteness of a foaming part is provided, the adhesion of dirt on the surface of the foaming part is prevented, and an wear resistance is also improved. <P>SOLUTION: In the laser marking method for marking on a resin 10, the resin 10, which foams on irradiation with laser beams 20, undergoes laser irradiation. After the foaming part 30 is cured on the first laser irradiation of the resin 10, the second laser irradiation is conducted by directing to the foaming part 30. <P>COPYRIGHT: (C)2009,JPO&INPIT |
